Rep Jackie Walorski (Indiana) has died in a car crash

[Ferguson97]

Two of her staffers have died as well: a district director and a press secretary.

[Ferguson97]

However, auto deaths are significantly more common among younger people than older people, and members of Congress are definitely old…so in that sense MCs should be less likely than average to die in a car accident.

Members of Congress almost never drive themselves though, they usually have staffers do it when they're doing work-related stuff. And given that staffers are mostly on the younger end, I'm frankly surprised it doesn't happen more often.